Parameter Tree:
EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > QUASI-BIENNIAL OSCILLATION

Definition:
A stratospheric (16 to 35 km altitude) oscillation of equatorial
east-west winds which vary with a period of about 26 to 30 months or
roughly 2 years; typically blowing for 12-16 months from the east,
then reverse and blowing 12-16 months from the west, then back to
easterly again.


Reference:
Naujokat, B., 1986: An update of the observed quasi-biennial
oscillation of the stratospheric winds over the
tropics. J. Atmos. Sci., 43, 1873-1877.
http://hurricane.atmos.colostate.edu/forecasts/1999/aug99/definitio...